MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The stress below which the material does not fail is called _________ |
| A. | Fatigue stress |
| B. | Endurance limit |
| C. | Fatigue life |
| D. | Total stress |
| Answer» C. Fatigue life | |
| 2. |
How can the mean stress of fatigue be evaluated? |
| A. | Pascal’s equation |
| B. | Soderberg equation |
| C. | Heisenberg’s equation |
| D. | Goodman relation |
| Answer» E. | |
| 3. |
Fatigue of materials is characterized by ________ curve. |
| A. | Hermite |
| B. | Bezier |
| C. | Wohner |
| D. | S-T |
| Answer» D. S-T | |
| 4. |
What kind of stress does this graph show? |
| A. | Reversed stress |
| B. | Fluctuating stress |
| C. | Irregular stress |
| D. | Constant stress |
| Answer» C. Irregular stress | |
| 5. |
Which of the following is not applicable to fatigue fracture? |
| A. | Loss of strength |
| B. | Loss of ductility |
| C. | Loss of electrical conductance |
| D. | Uncertainty in strength and service life |
| Answer» D. Uncertainty in strength and service life | |
| 6. |
FATIGUE_OF_MATERIALS_IS_CHARACTERIZED_BY__________CURVE.?$ |
| A. | Hermite |
| B. | Bezier |
| C. | Wohner |
| D. | S-T |
| Answer» D. S-T | |
| 7. |
The stress below which the material does not fail is called _________$ |
| A. | Fatigue stress |
| B. | Endurance limit |
| C. | Fatigue life |
| D. | Total stress |
| Answer» C. Fatigue life | |
| 8. |
How_can_the_mean_stress_of_fatigue_be_evaluated?$ |
| A. | Pascal’s equation |
| B. | Soderberg equation |
| C. | Heisenberg’s equation |
| D. | Goodman relation |
| Answer» E. | |
| 9. |
The fatigue fracture occurs __________ |
| A. | Below yield stress |
| B. | Below tensile stress |
| C. | At stress-strain point |
| D. | Above tensile stress |
| Answer» C. At stress-strain point | |
| 10. |
Which of the following is not applicable for fatigue fracture? |
| A. | Loss of strength |
| B. | Loss of ductility |
| C. | Loss of electrical conductance |
| D. | Uncertainty in strength and service life |
| Answer» D. Uncertainty in strength and service life | |
| 11. |
What is the depth of notch seen in impact testing methods? |
| A. | 2 mm |
| B. | 5 mm |
| C. | 9 mm |
| D. | 12 mm |
| Answer» B. 5 mm | |
| 12. |
The specified fixed in the vise signifies a ________ form. |
| A. | Cantilever |
| B. | Fixed beam |
| C. | Simply supported beam |
| D. | Overhanging beam |
| Answer» B. Fixed beam | |
| 13. |
What is the size of the specimen used Charpy test? |
| A. | 75*10*10 |
| B. | 75*5*5 |
| C. | 55*10*10 |
| D. | 55*5*5 |
| Answer» D. 55*5*5 | |
| 14. |
What is the V-notch angle found on an impact testing machine? |
| A. | 30 degrees |
| B. | 45 degrees |
| C. | 60 degrees |
| D. | 90 degrees |
| Answer» C. 60 degrees | |
| 15. |
The tendency of a ductile material to act as brittle is known as __________ |
| A. | Compaction |
| B. | Brazing |
| C. | Tempering |
| D. | Notch sensitivity |
| Answer» E. | |